Commit 2025-01-26 07:04 24e055ff
View on Github →feat: mark AnalyticAt / MeromorphicAt for use with fun_prop (#21057)
Mark theorems pertaining to AnalyticAt
/ MeromorphicAt
for use with fun_prop
. As discussed yesterday in the FLUG meeting with @TwoFX and others, I duplicated a several theorems because tactics such as fun_prop
and rw
cannot see that f + g
and fun x => f x + g x
are the same thing. I made the formulations a little more consistent, in that there is now always one theorem AnalyticAt.add
that speaks about f + g
and one version AnalyticAt.add'
that speaks about fun x => f x + g x
.
This new functionality is used in Project VD, which aims to formalize Value Distribution Theory for meromorphic functions on the complex plane.